用命令调节背光的值

1 经常会遇到用调节背光的亮度

用命令调节比较方便

2 用userdebug 版本

如：

adb shell 

查看当前背光的值

adb shell cat /sys/class/backlight/backlight1/brightness

# cat /sys/class/backlight/backlight1/brightness

155

再次设置背光的值

用echo 输入调节

echo 1 >/sys/class/backlight/backlight1/brightness

# cat /sys/class/backlight/backlight1/brightness

1

3 亮屏/息屏

adb shell input keyevent 26

4 搞定